Commit a21a8790 authored by Mavroudis Chatzilaridis's avatar Mavroudis Chatzilaridis Committed by sanglipeng
Browse files

drm/i915/quirks: Add inverted backlight quirk for HP 14-r206nv 

stable inclusion
from stable-v5.10.173
commit 266864c1e0edb4034f6346b5309f0e68494bcfb3
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8BFR3

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=266864c1e0edb4034f6346b5309f0e68494bcfb3

--------------------------------

commit 5e438bf7 upstream.

This laptop uses inverted backlight PWM. Thus, without this quirk,
backlight brightness decreases as the brightness value increases and
vice versa.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8013


Cc: stable@vger.kernel.org
Signed-off-by: default avatarMavroudis Chatzilaridis <mavchatz@protonmail.com>
Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230201184947.8835-1-mavchatz@protonmail.com


(cherry picked from commit 83e7d6fd)
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent d1dfccca

drivers/gpu/drm/i915/display/intel_quirks.c

+2 −0
Original line number Diff line number Diff line
@@ -159,6 +159,8 @@ static struct intel_quirk intel_quirks[] = { 
	/* ECS Liva Q2 */

	{ 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },

	{ 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },

	/* HP Notebook - 14-r206nv */

	{ 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },

};



void intel_init_quirks(struct drm_i915_private *i915)